package Day05;

public class Demo03 {
    public static void main(String[] args) {
        Person02 p = new Person02("何周华");
        p.age = 20;
        //p.name = "何周华";
        p.say();
    }
}
class Person02{
    Person02(String n){
        name = n;
    }
    String name;
    int age;

    void say(){
        System.out.println(name);
    }
}
